Home / 105,282.59-145,043.66-73,394.51

Finding the Fourth Proportional to 105,282.59, 145,043.66 and 73,394.51

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Solution

The fourth proportional to 105,282.59, 145,043.66 and 73,394.51 is: 101,112.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,282.59 : 145,043.66 = 73,394.51 : x
  2. Step 2: Convert to fraction form
    105,282.59/145,043.66 = 73,394.51/x
  3. Step 3: Cross multiply
    105,282.59x = 145,043.66 × 73,394.51
  4. Step 4: Simplify right side
    105,282.59x = 10,645,407,812.57
  5. Step 5: Solve for x
    x = 10,645,407,812.57/105,282.59
  6. Step 6: Final answer
    x = 101,112.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.